ath10k: remove extraneous error message in tx alloc

Remove extraneous error message in 'ath10k_htt_tx_alloc_cont_frag_desc'
as the caller 'ath10k_htt_tx_alloc' already dumps a proper error
message

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/ath10k/htt_tx.c

@@ -282,10 +282,8 @@ static int ath10k_htt_tx_alloc_cont_frag_desc(struct ath10k_htt *htt)
 	htt->frag_desc.vaddr = dma_alloc_coherent(ar->dev, size,
 						  &htt->frag_desc.paddr,
 						  GFP_KERNEL);
-	if (!htt->frag_desc.vaddr) {
-		ath10k_err(ar, "failed to alloc fragment desc memory\n");
+	if (!htt->frag_desc.vaddr)
 		return -ENOMEM;
-	}
 
 	return 0;
 }